{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["manufacturing standard", "application", "engineering feature", "material", "process parameter", "process characterization"], "input": "The organ transplantation sector has difficulties and the organ printing by jet based on 3d tissue engineering offers a possible solution ."}
{"manufacturing standard": [], "application": ["3d tissue engineering"], "engineering feature": [], "material": [], "process parameter": [], "process characterization": []}